4-Bromo-5-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid
2-Bromo-6-methoxy-5-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Bromo-4-(difluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine
4-Bromo-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid